Finding the Fourth Proportional to 3,608.98, 5,412.84 and 1,012.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.98 : 5,412.84 = 1,012.12 : x
2. Step 2: Convert to fraction form
   3,608.98/5,412.84 = 1,012.12/x
3. Step 3: Cross multiply
   3,608.98x = 5,412.84 × 1,012.12
4. Step 4: Simplify right side
   3,608.98x = 5,478,443.62
5. Step 5: Solve for x
   x = 5,478,443.62/3,608.98
6. Step 6: Final answer
   x = 1,518.00